Boiler.



D. WIGERT.

BOILER.

APPLICATION FILED 00TJ12, 1912.

1,071,286, Patented Aug. 26, 1913.

2 SHEETSSHEBT 1.

wwlnventor v by v Attorneys COLUMHIA PLANOGRAPH CQLWAISHINGTON. D. c.

D. WIGERT.

BOILER.

APPLICATION FILED OUT. 12, 1912.

1,071,286. Patented Aug. 26, 1913.

2 SHEETS-SHEET 2.

III/III!!! Inventor Attorneys COLUMBIA PLANOGRAPH C0-- wAsl-uNn'mN. n. c.

llT

ATES PATENT oc DAVID WIGERT, OF GALESBURG, ILLINOIS, ASSIGNOR TO DAVID WIGER'I BOILER WORKS, OF GALESBURG, ILLINOIS.

BOILER.

oriasr.

To aZZ whom it may concern Be it known that I, DAVID YVIonRr, a citizen of the United States, residing at Galesburg, in the county of Knox and State of Illinois, have invented a new and useful Boiler, of which the following is a specification.

This invention relates to boilers particu larly designed for use in hot water and steam heating plants, one of the objects of the invention being to provide a boiler havin g the maximum heating capacity and having no parts exposed to the heat of the furnace but what are protected from burning by water contained therein.

With the foregoing and other objects in View which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodimentof the invention herein disclosed, can be made within the scope of what is claimed, withoutdeparting from the spirit of the invention.

In the accompanying drawings the preferred form of the invention has been shown.

In said drawings :Figure 1 is a side elevation of the furnace, one side wall of the parts connected thereto being removed,

and the top of the casing and the smoke outlet being shown in section. Fig. 2 is a section on line AB Fig. 1. Fig. 3 is a section on line C D Fig. 1. Fig. 4: is a front elevation of the back sections of the furnace wall. Fig. 5 is an enlarged section through one of the devices employed for coupling a pipe to a header.

Referring to the figures by characters of reference 1 and 2 designate the hollow front sections of the boiler, these sections being so shaped as to form fuel openings and ash opening. at the proper points, there being a door 3 supported by the sections for closing the fuel opening and another door f sup ported by the sections for closing the opening in the front of the ash pit. Each side wall of the boiler includes a front end sec tion 5, a desired number of intermediate sec tions 6, and two back end sections 7 and 8. All of the sections are hollow, and, as shown in Fig. 2, have their upper ends curved inwardly so as to overhang the bottom of the furnace and then extended upwardly.

Specification of Letters Patent.

Application filed October 12, 1912.

Patented Aug. 26,1913. Serial No. 725,547.

Each of the sections 5, (3, 7 and S, is provided upon its sides and adjacent its upper and lower ends, with countersunk bosses 9 designed to receive the ends of push nipples 10 which maintain colnnnniication between the ends of the sections. The sections 5 are similarly connected to the respective front sections 1 while the sections 8 are similarly connected to the upper and lower ends of side rear sections 11. These last named sec tions are hollow and arranged between them are intermediate rear sections 12 likewise hollow. Each of the intermediate sect-ions is provided, on both sides, with upper and lower countersunk bosses 13 similar to the bosses 9 and which receive the end portions of push nipples 14 such as used at 10. The inner sides of the sections 11 are similarly provided with countersunk bosses and communicate with the adjacent sections 12 through push nipples 14L. The sections 11 and 12 are held together by tie rods 15 which extend transversely through them and axially through the push nipples 1d, the ends of these rods being projected beyond the outer sides of the sections 11 where they are provided with nuts or the like whereby the sections can be tightly clamped upon the ends of the push nipples. The sections of the side walls are similarly connected to the side back sections and to the front sec tions by means of tie rods 16 extending transversely through the several sections and axially through the push nipples 10. With the parts thus assembled it will be seen that the various sections constituting the front, back, and sides of the boiler constitute water containers all of which communicate so that Water is free to circulate through them.

By referring to Fig. 4; it will be seen that the sections 11 and 12 constituting the back wall of the boiler are spaced apart greater distances at their lower ends than at their upper ends and that the side sections 11 extend downwardly greater distances than do the intermediate sections 12. Thus it will be seen that passages 17 are formed between the sections 11 and 12 and between the sec tions 12, and, furthermore, another large passage 18 is formed under the sections 12, these passages 17 and 18 permitting products of combustion to flow readily outwardly from the boiler and into the smoke outlet pipe 19 which is extended from a back plate 20 or the like secured to the rear faces of the sections 11 and 12. Each of the sections 11 and 12 has a passage 21 extending transversely therethrough and a rod 22 is mounted for rotation in these passages and extends transversely across the spaces or passages 17. This rod is provided with cleaning fingers 23 which are hung within the spaces or passages 17 and are fixedly connected to the rod 22. A handle 24 or the like is connected to one end of the rod and beyond one side of the boiler and by means thereof the rod 22 can be rotated back and forth so as thus to cause the fingers 23 to swing within the passages 17 and clear them of any accumulations of soot which may be therein.

Intel-posed between the sections 7 and below the overhanging portions 6 thereof is a substantially semi-circular header 25 provided, in its back wall, with transversely extending series of apertures 26 disposed preferably in staggered relation. This header is connected to the sections 7 by means of push nipples 27 similar to the nipples 10 and 1&1 hereinbefore described, there being a tie rod extending transversely through the sections '7 and axially through the nipples 27 for the purpose of binding the sections 7 and the header 25 upon the push nipples.

Fitted within each of the openings 26 is the tapered intermediate portion 28 of a hollow coupling member 29, fitted in any desired manner, upon the upper end of a grate pipe 29, this pipe extending downwardly below the header 25 and thence forwardly. The coupling member 29 has its outer or exposed end closed, as shown particularly in Fig. 5 while its other end, which is located inside of the header 25, is open. Thus water may freely circulate from pipe 29 through coupling member 29 to the header 25 and vice versa.

Fitted within the header wall and directly opposite each opening 26, is the cylindrical portion 30 of a hollow nut 31. One end of this nut is preferably reduced in diameter and provided with a threaded bore for the reception of one end portion of a bolt 33. This bolt is arranged axially within the coupling 29 and engages the closed end of the coupling. A flange 34: is formed upon the nut 30 and is adapted to be seated within a counter bore 35 formed in the front face of the header One or more openings 36 are provided within that portion of nut 31 projecting into the header 25 and water is thus free to circulate from the header and into and out of the nut 31. Obviously, therefore, all danger of the nut burning oil under the intense heat to which it is subjected is eliminated.

As hereinbefore stated, the openings 26 are preferably disposed in staggered relation and, therefore, the couplings 29 are similarly arranged. Furthermore, the couplings constituting the upper row are preferably of greater length than those constituting the lower row, as will be seen by referring particularly to Fig. 1. Thus the pipes 29 extending from the upper couplings 29 will not lie too close to the pipes extending downwardly from the couplings of the lower row.

As hereinbefore pointed out, pipes 29 ex tend forwardly under the header 25. These pipes thus constitute hollow grate bars and the front ends of the pipes are attached to couplings 37 similar to the couplings 29 hereinbefore described. These couplings 37 are connected to a header 38 supported in any suitable manner within the front por tion of the boiler and having a supply pipe 39 opening thereinto.

Arranged along the inner side of each section 6 are two parallel pipes 1-0 the lower ends of which are connected to the lower portions of the sections 6 by means of couplings 11. The upper ends of the pipes 10 are disposed parallel with the overhanging portions of the sections 6 and then extend upwardly and are attached to the upper portions of the sections by means of couplings 42. Each of the sections 5 is provided with but a single pipe 13, this pipe, however, being similar to the pipes 40 and being similarly connected to their sections.

The top of the boiler can be closed in any preferred manner, as by means of a plate eel supported between the upper ends of the sections 5, 6, 7 and 8 and likewise interposed between the front and the back sections. All of the structure herein described is of course to be inclosed in a suitable housing formed of masonry or of any other preferred material. Outflow pipes may be connected wherever practical to the boiler and one or more inflow pipes can be used. For example, an outflow pipe may be located as at 46. In the drawings only a single inflow or intake pipe has been shown, this being illustrated at 39 and discharging into the header 38.

The door 3 is preferably provided with a draft door -15. Thus it will be seen that when fuel is placed on the tubular grate bars or pipes 29 and ignited, air will be supplied thereto through the open door 45 and will pass downwardly through the fuel and into the ash pit. The products of combustion will thus pass downwardly through the upstanding portions of the pipes 29 and thence through the passages 17 and 18 and upwardly to the smoke pipe 19. Not only will the various sections constituting the walls of the boiler be thoroughly heated, but the heating surface of the boiler is greatly increased by providing pipes 29, 10 and 43 as well as by providing the hollow couplings 29, 37, and Q2 and the headers 38 and 25. Obviously the water contained within these sections, couplings, headers and pipes will. have its temperature quickly raised and the effectiveness of the boiler is thereby materially increased.

Particular importance is attached to the means disclosed for securing the couplings to the header 25. I-leretofore when nuts and bolts have been used for similar purposes, the nuts have soon burned off under the in tense heat to which they have been subjected and the parts have thus become separated, thereby rendering the boiler unfit for further use until repaired. It has been found that by using hollow nuts communieating with the interior of the header, the water admitted to the nuts will prevent them from burning off. Then, too, considerable heating surface is thus added to the boiler.

That is claimed is 1. A boiler having a side wall made up of separate hollow sections, connections between the upper portions of the sections and connections between the lower portions of said sections, all of said connections permitting circulation of water through the sections, each of said sections overhanging the grate of the furnace, a pipe arranged along the inner surface of one of the sections, and couplings for establishing communication between the ends of the pipes and the upper and lower portions respectively of the sections.

2. A boiler having a back wall made up of spaced hollow sections communicating adjacent their upper and lower ends, sectional side walls communicating with the first named sections, a back header supported between and communicating with the side walls, pipes extending downwardly and forwardly from the back header and constituting grate bars, a front header, and couplings for connecting the ends of said pipes to the back and front headers respectively.

3. A boiler including a back wall and side walls made up of spaced communicating sections, an upwardly extending header interposed between and communicating with the back portions of the side walls, pipes extending downwardly back of the header and forwardly thereunder and constituting grate bars, a front header communicating with the front ends of the pipes, and pipes extending upwardly close to the inner surfaces of the side walls and communicating at their ends with the upper and lower end portions of the adjacent sections.

l. A boiler including a back wall made up of spaced hollow sections communicating adjacent their upper and lower ends, there being passages between the lower portions of the sections for the eXit of products of combustion, a member mounted for movement within said sections, means for actuating said member, and cleaning elements movable with said member and within said spaces.

5. A boiler including sectional back and side walls, a header interposed between and communicating with the back portions of the side walls, pipes extending downwardly back of the header and forwardly thereunder and constituting grate bars, and a front header communicating with the front ends of the pipes.

6. A boiler including sectional back and side walls, a header interposed between and communicating with the back portions of the side walls, pipes extending downwardly back of the header and forwardly thereunder and constituting grate bars, a front header communicating with the front ends of the pipes, and pipes extending upwardly close to the inner surfaces of the side walls and communicating at their ends with the upper and lower end portions of the adjacent wall sections.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses.

DAVID l/VIGERT.

WVitnesses WV. C. FRANK, L. E. JoHNsoN.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. C. 

